CN103888268A - Mobile phone earphone based on PUF identity authentication and information encryption - Google Patents
Mobile phone earphone based on PUF identity authentication and information encryption Download PDFInfo
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- CN103888268A CN103888268A CN201410158686.7A CN201410158686A CN103888268A CN 103888268 A CN103888268 A CN 103888268A CN 201410158686 A CN201410158686 A CN 201410158686A CN 103888268 A CN103888268 A CN 103888268A
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Abstract
The invention relates to a mobile phone earphone based on PUF identity authentication and information encryption. The mobile phone earphone based on PUF identity authentication and information encryption is characterized in that a PUF module is arranged between an earphone audio interface and an earphone loudspeaker and is inlaid in the mobile phone earphone; the PUF module comprises an energy collector, a duplex communicator, a static storage, an error correction decoder and an encrypted circuit; the energy collector, the duplex communicator and the earphone audio interface are connected; the energy collector obtains voltage and current through the audio interface and supplies power to other modules after processing the voltage and the current; the duplex communicator is in intercommunication with a mobile phone through the earphone audio interface, and is further connected with the static storage and the encrypted circuit; the static storage is connected with the error correction decoder; the error correction decoder is connected with the encrypted circuit; the encrypted circuit is connected with the earphone loudspeaker. By the adoption of the PUF technology, the safety problem of an existing encryption algorithm is solved through hardware encryption, and the mobile phone earphone becomes a special device for identity authentication, information encryption and payment security enhancement.
Description
Technical field
The invention belongs to information encryption field, especially a kind of handset earphone based on PUF authentication and information encryption.
Background technology
Handset earphone is the conventional outer relay part of of mobile phone, in the ascendant along with smart mobile phone development, mobile phone has carried Entertainment Function more, presents multimedia feature, in addition reduce the needs of call radiation, handset earphone becomes people gradually usually with thing at one's side.Along with the universal and 3G of smart mobile phone, the development of 4G technology is also more and more extensive as carrying out authentication or carrying out by mobile phone the application that pays without card by mobile phone.Existing mobile phone is without conventionally adopting the software approachs such as concerning security matters method of commerce or security algorithm to realize in card payment technical field, ubiquity poor stability, operating process complexity, the problem that cost is high; Meanwhile, in the authentication process itself of use mobile phone and server background, have too the problems referred to above, how improving mobile phone is current problem in the urgent need to address without the security performance, reduction use difficulty and the cost that block payment and handset identities checking.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of reasonable in design, security performance is high, cost is low and easy to use handset earphone based on PUF authentication and information encryption is provided.
The present invention solves existing technical problem and takes following technical scheme to realize:
A kind of handset earphone based on PUF authentication and information encryption, comprise earpiece audio interface and earphone speaker, between earpiece audio interface and earphone speaker, be provided with PUF module and be inlaid in handset earphone, described PUF module comprises energy collecting device, duplex signaling device, static memory, error correction decoder and encrypted circuit, described energy collecting device, duplex signaling device is connected with earpiece audio interface, this energy collecting device obtain voltage and electric current by audio interface and process after be connected to duplex signaling device, static memory, it in error correction decoder and encrypted circuit, is its power supply, described duplex signaling device carries out both-way communication by earpiece audio interface and mobile phone, this duplex signaling device also with static memory, encrypted circuit is connected, described static memory is connected with error correction decoder, described error correction decoder is connected with encrypted circuit, this encrypted circuit is also connected with earphone speaker.
And, described energy collecting device is connected and composed by miniature transformer, field effect pipe bridge, Schottky diode and filter circuit, this miniature transformer is connected with earpiece audio interface, and this filter circuit output is connected with duplex signaling device, static memory, error correction decoder and encrypted circuit.
And, described duplex signaling device comprises frequency shift keying, RS232 signal processor, ac-coupled device and filter, described ac-coupled device is connected with earpiece audio delivery outlet, described filter is connected with earpiece audio input port, ac-coupled device is all connected with frequency shift keying with filter, and this frequency shift keying module is connected with RS232 signalling module.
And described static memory is various embedded static volatile memories.
And, the error correction algorithm circuit of the described various international and domestic standards of error correction decoder.
And described encrypted circuit is to be the cryptographic algorithm circuit of various international and domestic standards.
And described PUF module is PUF integrated circuit (IC) chip.
Advantage of the present invention and good effect are:
1, this handset earphone increases by a PUF(Physical UnclonableFunction physics between the audio interface of earphone and loud speaker can not clone feature) module, broken through the safety issue of existing concerning security matters method of commerce and security algorithm existence by hardware-based cryptographic, can realize the security strategy of quick mobile-phone payment, can change the safe design of traditional IC-card, can be used for identification and verification that security intensity is higher, can be applicable to the hardware identification to physical equipment, handset earphone fail safe take PUF as core technology is high, even on physical security, exceed existing carried out any soft based on mobile phone, the safety measure of hardware, reach the level of EAL6+, make this type of handset earphone become authentication, information encryption, strengthen the task equipment of safety of payment.
2, this handset earphone application PUF technology, treat as in added checking and an encryption device that is similar to especially USBKEY for mobile phone, all bring huge change at aspects such as customer experience impression and actual fail safes, handset earphone is as conventional mobile phone external accessory, there is natural function load advantage, earphone only need to provide interface standard to numerous associated manufacturers, can be used, and has extremely strong advantage in cost, flexibility ratio, convenience.
3, the PUF module of this handset earphone adopts the reliability that guarantees PUFkey from the extractive technique of wound; Coding and decoding technology guarantees the repeatability of PUF; Oppositely Prevention-Security further ensures the safety of PUF checking and transmission.In earphone, install the chip or the circuit that contain PUF technology additional, the object variable body that just this can be carried is the safe important document of containing the multiple functions such as safety of payment, identity veritification, data encryption, similarly is to have loaded onto a special USBKEY to mobile phone.
4, the present invention is reasonable in design, first, has overcome the problem of current mobile phone without the technical security deficiency existing in card payment technical field, realizes the safety certification function of combining closely with payment flow by the handset earphone that contains PUF technology; Secondly, client device using the handset earphone that contains PUF feature as authentication, by the mode of online validation, carry out appraising and deciding of identity with the certificate data server (PUF information database) that is placed in service background, solve and comprise the identification of cloud computing, cloud service and other Internet services and the authentication demand of manipulation internet of things equipment is provided; Finally, using the handset earphone that contains PUF technology as information encryption, deciphering, infomational message signature, separate the equipment of signing, realize class as visual micro-letter, the even information encryption and decryption functions of normal speech call service of note expressly.
Accompanying drawing explanation
Fig. 1 is circuit block diagram of the present invention;
Fig. 2 is the circuit diagram of energy collecting device of the present invention;
Fig. 3 is the circuit block diagram of duplex signaling device of the present invention;
Fig. 4 is online validation schematic flow sheet of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is further described.
Based on a handset earphone for PUF authentication and information encryption, as shown in Figure 1, comprise earpiece audio interface, PUF module and earphone speaker, this PUF module is inlaid in handset earphone inside.In the present embodiment, PUF module adopts the PUF chip of high integration, comprises energy collecting device, duplex signaling device, static memory, error correction decoder and encrypted circuit, and described earpiece audio interface is connected with duplex signaling device with energy collecting device.Described energy collecting device obtain voltage and electric current by audio interface and process after be connected in duplex signaling device, static memory, error correction decoder and encrypted circuit as it provides operating voltage and electric current.Described duplex signaling device carries out both-way communication by earpiece audio interface and mobile phone, simultaneously, this duplex signaling device is connected with static memory, encrypted circuit, realizes following functions: (1) obtain pumping signal from the audio frequency outlet of mobile phone, for generation of PUF address and be sent in static memory; (2) PUF response is obtained key by error correction decoder; (3) plain code is sent to encrypted circuit from mobile phone, is encrypted by key; (4) receive the password of encrypted circuit generation and pass mobile audio interface back and verify.Described static memory is an embedded SRAM, (guaranteeing security verified with this) can not directly be accessed from chip exterior in its address, it is converted into address and is obtained PUF response by the excitation of duplex signaling device, this PUF response is equivalent to the fingerprint of static memory, different PUF chips have different embedded SRAMs, also just produced unique PUF response, this PUF response is admitted in error correction decoder.Described error correction decoder is gone out reliable and stable key and is sent into encrypted circuit by PUF response extraction, and this error correction decoder can use the error correction algorithm circuit of various international and domestic standards, as Reed-Muller, BCH or IBS scheduling algorithm circuit.The plain code that the key that described encrypted circuit produces error correction decoder and duplex signaling device transmit combines, and generates PUF password, and this encrypted circuit can adopt the cryptographic algorithm circuit of various international and domestic standards, for example AES, MAC, Hash, hmac algorithm.The PUF password being produced by encrypted circuit can directly be exported and be imported into earphone speaker by audio frequency, by user (by the APP on mobile phone) input handset; Also can automatically pass mobile phone back and verify, and not need manual intervention.The key being gone out by PUF response extraction also can be used as working key and be used, for the encryption to visual micro-letter, note or voice call.
As shown in Figure 2, energy collecting device comprise miniature transformer T1, the field effect pipe bridge that formed by four field effect transistor Q1, Q2, Q3, Q4, Schottky diode D1, by filter capacitor C1, C2 in parallel, filter circuit and light-emitting diode D2 that C3 forms.The front end of this energy collecting device is the miniature transformer T1 that is connected to earpiece audio mouth, and the effect of this miniature transformer T1 is to improve input voltage, and the rear termination field effect transistor bridge of this miniature transformer T1, is used for alternating current to become direct current; After field effect pipe bridge, connect Schottky diode, in order to prevent and treat current reflux; Be finally the electric current that several low-pass filtering electric capacity in parallel carrys out stable output, connect a light-emitting diode D2 simultaneously, indicate for state.Energy collecting device is for providing VDD-to-VSS to other modules (comprising duplex signaling device, static memory, error correction decoder and cryptographic algorithm circuit).Therefore, whole PUF module does not also need extra external power supply or internal battery, and this will improve its application scenarios greatly.
As shown in Figure 3, duplex signaling device comprises frequency shift keying, RS232 signal processor, ac-coupled device and filter, described ac-coupled device is connected with earpiece audio delivery outlet, described filter is connected with earpiece audio input port, ac-coupled device is all connected with frequency shift keying with filter, and this frequency shift keying module is connected with RS232 signalling module.In the present embodiment, frequency shift keying adopts BELL202FSK(FrequencyShiftKeying), the effect of BELL202FSK is that analog communication is converted into digital communication, i.e. the corresponding 1200Hz audio frequency of digital " 0 "; Numeral " 1 " corresponding 2200Hz audio frequency.RS232 is the industrial standard of serial communication, can carry out serial digital communication fast with static memory, cryptographic algorithm circuit by it.
Fig. 4 is a typical application example of this earphone mobile phone, and this figure has provided the processing procedure of utilizing this handset earphone to carry out authentication, and proof procedure adopts comparatively general excitation (challenge)/response mode.Its processing procedure is as follows:
(1) in the time that needs carry out mobile-phone payment or login Internet service, send a checking request by mobile phone.
(2) PUF database is issued in checking request by account (service) system.
(3) PUF database produces an excitation random train and plaintext.
(4) encourage random train and expressly send back in the PUF chip of handset earphone.
(5) the response results (key) of the excitation string that PUF chip calculates according to PUF Q-character
(6) expressly become ciphertext by secret key encryption, and ciphertext is returned to account (service) system.
(7) calculate correct ciphertext by PUF database authentication, and contrast with the ciphertext of mobile phone passback.Result is unanimously by checking.
(8) whether account (service) system notifies cellphone subscriber successfully to verify according to the result of PUF database authentication.
If this flow process takes abridged step also can carry out, produce verification word string by the PUF chip of handset earphone by counter type and (add one at every turn, never repeat), and calculate verification ciphertext by PUF Q-character, then verification word string is expressly sent to background system for proof of identity together with result of calculation ciphertext, can saves like this step (1) and (2).
It is emphasized that; embodiment of the present invention is illustrative; rather than determinate; therefore the present invention includes and be not limited to the embodiment described in embodiment; every other execution modes that drawn by those skilled in the art's technical scheme according to the present invention, belong to the scope of protection of the invention equally.
Claims (7)
1. the handset earphone based on PUF authentication and information encryption, comprise earpiece audio interface and earphone speaker, it is characterized in that: between earpiece audio interface and earphone speaker, be provided with PUF module and be inlaid in handset earphone, described PUF module comprises energy collecting device, duplex signaling device, static memory, error correction decoder and encrypted circuit, described energy collecting device, duplex signaling device is connected with earpiece audio interface, this energy collecting device obtain voltage and electric current by audio interface and process after be connected to duplex signaling device, static memory, it in error correction decoder and encrypted circuit, is its power supply, described duplex signaling device carries out both-way communication by earpiece audio interface and mobile phone, this duplex signaling device also with static memory, encrypted circuit is connected, described static memory is connected with error correction decoder, described error correction decoder is connected with encrypted circuit, this encrypted circuit is also connected with earphone speaker.
2. a kind of handset earphone based on PUF authentication and information encryption according to claim 1, it is characterized in that: described energy collecting device is connected and composed by miniature transformer, field effect pipe bridge, Schottky diode and filter circuit, this miniature transformer is connected with earpiece audio interface, and this filter circuit output is connected with duplex signaling device, static memory, error correction decoder and encrypted circuit.
3. a kind of handset earphone based on PUF authentication and information encryption according to claim 1, it is characterized in that: described duplex signaling device comprises frequency shift keying, RS232 signal processor, ac-coupled device and filter, described ac-coupled device is connected with earpiece audio delivery outlet, described filter is connected with earpiece audio input port, ac-coupled device is all connected with frequency shift keying with filter, and this frequency shift keying module is connected with RS232 signalling module.
4. according to a kind of handset earphone based on PUF authentication and information encryption described in claims 1 to 3 any one, it is characterized in that: described static memory is various embedded static volatile memories.
5. according to a kind of handset earphone based on PUF authentication and information encryption described in claims 1 to 3 any one, it is characterized in that: the error correction algorithm circuit of the described various international and domestic standards of error correction decoder.
6. according to a kind of handset earphone based on PUF authentication and information encryption described in claims 1 to 3 any one, it is characterized in that: described encrypted circuit is to be the cryptographic algorithm circuit of various international and domestic standards.
7. according to a kind of handset earphone based on PUF authentication and information encryption described in claims 1 to 3 any one, it is characterized in that: described PUF module is PUF integrated circuit (IC) chip.
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CN104219597A (en) * | 2014-09-30 | 2014-12-17 | 王美金 | WIFI (wireless fidelity) bone conduction headphone system |
CN106028185A (en) * | 2016-04-29 | 2016-10-12 | 乐视控股(北京)有限公司 | Earphone authentication method and device, electronic equipment and earphone |
CN108123928A (en) * | 2016-11-30 | 2018-06-05 | 台湾积体电路制造股份有限公司 | Server apparatus and its operating method in client-server facility communication system |
CN108449322A (en) * | 2018-02-13 | 2018-08-24 | 环球鑫彩(北京)彩票投资管理有限公司 | Identity registration, authentication method, system and relevant device |
CN113407930A (en) * | 2021-07-17 | 2021-09-17 | 太原理工大学 | Identity verification system based on cavity type photorefractive crystal PUF |
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Cited By (9)
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CN104219597A (en) * | 2014-09-30 | 2014-12-17 | 王美金 | WIFI (wireless fidelity) bone conduction headphone system |
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CN108123928A (en) * | 2016-11-30 | 2018-06-05 | 台湾积体电路制造股份有限公司 | Server apparatus and its operating method in client-server facility communication system |
CN108123928B (en) * | 2016-11-30 | 2021-05-07 | 台湾积体电路制造股份有限公司 | Server device in client-server device communication system and method of operating the same |
CN108449322A (en) * | 2018-02-13 | 2018-08-24 | 环球鑫彩(北京)彩票投资管理有限公司 | Identity registration, authentication method, system and relevant device |
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CN113407930A (en) * | 2021-07-17 | 2021-09-17 | 太原理工大学 | Identity verification system based on cavity type photorefractive crystal PUF |
CN113407930B (en) * | 2021-07-17 | 2022-06-21 | 太原理工大学 | Identity verification system based on cavity type photorefractive crystal PUF |
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